“The short was essentially one of the scariest little scenes I’ve ever seen,” said Del Toro, executive producer of the feature version. “It was also incredibly well-made. … very claustrophobic. Really atmospheric. Really, really scary. You’re going to see the craftsmanship, ingenuity and the horror that really made me want to come in and produce the feature version of Mama.”

The feature-length version stars Jessica Chastain (Zero Dark Thirty), Nikolaj Coster-Waldau (Game of Thrones), Megan Charpentier and Isabelle Nelisse. The story centers on two little girls who survived in the wild for five years after their parents died. When the girls are found and taken into the home of their uncle and his wife, it becomes apparent a spirit who may or may not be their mother is still watching over them.

The film from Universal Pictures is slated for a Jan. 18, 2013 release.

Watch the video, as well as the second trailer for the feature-length version below.